I'll move it.
What computer operating system is your Premiere Elements 13 running on?
What do you mean by splice 2 videos together?
a. put them side by side on the Timeline and export them to one file saved to the computer hard drive or burned to disc
b. something like the following even before import into any Premiere Elements project
If it is "a", then we need to know the properties of those 2 files so that the project settings can be set accordingly.
What is your intended export? Based on the properties of the source media, we can then decide on export settings
to produce a file with properties as close as possible to the source (if that is what you want).
We will be watching for further information.